Listening the natural origin radio signals is a very suggestive experience with its particular charm. As you point a binnacle in a star night observing ... See more huge quantities of shining stars lost in the infinity of the space. Its true: it's just burning gas, but it can make us dream and think. Here we are not talking about esotherism: the adjectives suggestive mysterious and unknown are used in the scientific use only, in order to comment real phenomena: by mysterious is meant for instance a signal emitted by a physical phenomena we donut know yet. In RBW22 we don't call nor spirits nor aliens: even if we respect every idea about the matter is apparently notorious that VLF would be a terrible way for communicating with spirits or aliens. Maybe is easier to have betters result in the research of alien signals with a TV UHF antenna rather then with a dipole di terra of 150 m. This don't mean VLF are not suggestive. Matters treated in this site are not developed in cathedratic way, nor this site want to do school, we leave to scientists and teachers their jobs. HTML structure is very easy and from principal menu is possible to have a complete vision of everything is contained in the site in order to make the web surfing as easier as possible. In the site you could find several little mistakes: formulas, circuits, frequencies and language mistakes I have done all over this document. The Open Lab experience consists on the possibility of experience and work condivision, without the fear of who writes a book or with the fear of being judged by some experts. Even without big technological supplies, as the laboratory very expensive devices during expensive researches, is possible to realize very interesting radio scientific experiences to share and to comparate with the field experts. One year life of RBW22 showed. Thanks for cooperation.